Question

find the area. 12 ft a = ? ft² a = πr²

Explanation:

Step1: Find the radius

The diameter \(d = 12\) ft. The radius \(r=\frac{d}{2}\), so \(r=\frac{12}{2}=6\) ft.

Step2: Calculate the area

Use the formula \(A=\pi r^{2}\). Substitute \(r = 6\) and \(\pi=3.14\). Then \(A=3.14\times6^{2}\). First, \(6^{2}=36\). Then \(A = 3.14\times36=113.04\) \(ft^{2}\).

Answer:

\(113.04\)